MXL Fabrics tests

2026-09-06 16:35:54 +03:00
parent 4ec72d0c76
commit 3ecca24fe9
4 changed files with 725 additions and 0 deletions
@@ -0,0 +1,89 @@
+//go:build mxl_integration
+
+package mxlfabrics_test
+
+import (
+	"os"
+	"testing"
+
+	"github.com/qvest-digital/go-mxl/fabrics"
+	"github.com/qvest-digital/go-mxl/mxl"
+)
+
+func requireSHMInterface(
+	t *testing.T,
+	instance *fabrics.Instance,
+) fabrics.InterfaceConfig {
+	t.Helper()
+
+	interfaces, err := instance.Interfaces(&fabrics.InterfaceConfig{
+		Provider: fabrics.ProviderSHM,
+	})
+	if err != nil {
+		t.Fatalf("enumerate SHM interfaces: %v", err)
+	}
+
+	for _, iface := range interfaces {
+		if iface.Provider != fabrics.ProviderSHM {
+			continue
+		}
+		if iface.Caps.Flags&fabrics.InterfaceCapRemoteWrite == 0 {
+			continue
+		}
+
+		// Allow libfabric to assign a unique local SHM endpoint during
+		// Target.Setup or Initiator.Setup. The enumerated service is
+		// descriptive and should not be reused by both endpoints.
+		iface.Address.Service = ""
+		return iface
+	}
+
+	t.Fatal("no remote-write-capable SHM Fabrics interface found")
+	return fabrics.InterfaceConfig{}
+}
+
+func TestInterfacesIncludesSHM(t *testing.T) {
+	if _, err := os.Stat("/dev/shm"); err != nil {
+		t.Skipf("/dev/shm is unavailable: %v", err)
+	}
+
+	domain, err := os.MkdirTemp("/dev/shm", "mxl-player-fabrics-*")
+	if err != nil {
+		t.Fatalf("create temporary MXL domain: %v", err)
+	}
+	t.Cleanup(func() {
+		if err := os.RemoveAll(domain); err != nil {
+			t.Errorf("remove temporary MXL domain: %v", err)
+		}
+	})
+
+	instance, err := mxl.NewInstance(domain, "")
+	if err != nil {
+		t.Fatalf("create MXL instance: %v", err)
+	}
+	t.Cleanup(func() {
+		if err := instance.Close(); err != nil {
+			t.Errorf("close MXL instance: %v", err)
+		}
+	})
+
+	fabricInstance, err := fabrics.NewInstance(instance)
+	if err != nil {
+		t.Fatalf("create Fabrics instance: %v", err)
+	}
+	t.Cleanup(func() {
+		if err := fabricInstance.Close(); err != nil {
+			t.Errorf("close Fabrics instance: %v", err)
+		}
+	})
+
+	iface := requireSHMInterface(t, fabricInstance)
+
+	t.Logf(
+		"SHM interface: node=%q flags=%#x max-message-size=%d attr=%q",
+		iface.Address.Node,
+		iface.Caps.Flags,
+		iface.Caps.MaxMessageSize,
+		iface.Attr,
+	)
+}